地质力学磁力模型试验是利用电磁力模拟重力、电磁力场模拟重力场的原理建立的地质力学模型试验理论与方法。其试验相似判据可根据相似理论的3个基本原理推导。用量纲分析和方程推导均可得到各参数相似判据为Φ*=ε*=μ*=1,l*=u*=n,p*=σ*=E*=c*=1,k*=v*=q*=1,t*=n,ρ*=1,g*=1/n。在模型中,时间t、几何尺度l缩小n倍,重力加速度g扩大n倍,而材料的其他基本物理力学参数Φ、ε、μ、σ、E、c、k、v、q、ρ的相似比均为1,从理论上说可采用结构的原型材料进行地质力学磁力模型试验,这在模型试验的操作上十分方便。 Geomechanics Magnetic model test is the use of electromagnetic force simulation gravity, electromagnetic field simulation gravity field principle established geomechanical model test theory and method. The experimental similarity criterion can be deduced from the three basic principles of similarity theory. The similarity criterion of each parameter can be obtained by the dimensional analysis and the equation derivation. The similarity criterion is Φ * = ε * = μ * = 1, l * = u * = n, p * = σ * = E * = c * = v * = q * = 1, t * = n, p * = 1, g * = 1 / n. In the model, the time t and the geometric scale l are reduced by n times and the gravitational acceleration g is increased by n times. The other basic physical and mechanical parameters Φ, ε, μ, σ, E, c, k, v, q and ρ are similar Ratio of 1, in theory, the structure of the prototype material can be used for geomechanical magnetic model test, which is very convenient in the model test operation.